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Patents > Patent agent : Haseltine, Lake & Co. or Victor J. Evans & Number of figures: 9-13

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stability (8) · Airplane (8) · None (6) · frame (6) · propeller (6) · rudder (4) · propulsion (4) · navigation (4) · LTA (3) · hybrid (3) · marine (2) · airship (2) · steering (2) · helicopter (2) · gyroscope (2)
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